Financial Information for Subsidiary Guarantors and Non-guarantor Subsidiaries - Condensed Consolidating Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Current assets
Cash	$ 1,048	$ 994	$ 1,259	$ 1,140
Short-term investments	8,125	6,309
Restricted cash and short-term investments	757	774
Accounts receivable, net	1,826	1,771
Aircraft fuel, spare parts and supplies, net	995	1,004
Prepaid expenses and other	1,378	1,260
Total current assets	14,129	12,112
Operating property and equipment	24,042	23,084
Other assets
Goodwill	4,091	4,091
Intangibles, net of accumulated amortization	2,281	2,240
Other assets	2,211	2,244
Total other assets	8,583	8,575
Total assets	46,754	43,771
Current liabilities
Current maturities of long-term debt and capital leases	1,284	1,708
Accounts payable	1,587	1,377
Air traffic liability	5,415	4,252
Frequent flyer liability	2,776	2,807
Other accrued liabilities	3,171	3,291
Total current liabilities	14,233	13,435
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	17,638	16,196
Pension and postretirement benefits	7,517	7,562
Bankruptcy settlement obligations	275	325
Other liabilities	4,327	4,232
Total noncurrent liabilities	29,757	28,315
Stockholders' equity (deficit)
Common stock	7	7
Additional paid-in capital	15,049	15,135
Accumulated other comprehensive loss	(4,590)	(4,559)
Retained earnings (deficit)	(7,702)	(8,562)
Total stockholders' equity (deficit)	2,764	2,021
Total liabilities and stockholders' equity (deficit)	46,754	43,771
Eliminations and Reclassifications [Member]
Current assets
Accounts receivable, net	(13)	(13)
Receivables from related parties, net	(2,651)	(3,509)
Prepaid expenses and other		(155)
Total current assets	(2,664)	(3,677)
Other assets
Investments in subsidiaries	(8,781)	(7,717)
Goodwill	2	1
Other assets	(35)	(35)
Total other assets	(8,814)	(7,751)
Total assets	(11,478)	(11,428)
Current liabilities
Accounts payable	(2)
Payables to related parties, net	(2,651)	(3,509)
Other accrued liabilities	(2)	(3)
Total current liabilities	(2,655)	(3,512)
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	(34)	(35)
Other liabilities	(307)	(562)
Total noncurrent liabilities	(341)	(597)
Stockholders' equity (deficit)
Additional paid-in capital	(21,206)	(21,076)
Accumulated other comprehensive loss	4,712	4,681
Retained earnings (deficit)	8,012	9,076
Total stockholders' equity (deficit)	(8,482)	(7,319)
Total liabilities and stockholders' equity (deficit)	(11,478)	(11,428)
American Airlines Group (Parent Company Only) [Member]
Current assets
Cash	1	1	1	1
Receivables from related parties, net	2,409	1,893
Prepaid expenses and other	79
Total current assets	2,489	1,894
Other assets
Investments in subsidiaries	1,636	847
Other assets	58	53
Total other assets	1,694	900
Total assets	4,183	2,794
Current liabilities
Other accrued liabilities	39	14
Total current liabilities	39	14
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	1,257	758
Other liabilities	123	1
Total noncurrent liabilities	1,380	759
Stockholders' equity (deficit)
Common stock	7	7
Additional paid-in capital	15,049	15,135
Accumulated other comprehensive loss	(4,590)	(4,559)
Retained earnings (deficit)	(7,702)	(8,562)
Total stockholders' equity (deficit)	2,764	2,021
Total liabilities and stockholders' equity (deficit)	4,183	2,794
American Airlines, Inc. [Member]
Current assets
Cash	884	785	983	829
Short-term investments	4,853	3,290
Restricted cash and short-term investments	646	650
Accounts receivable, net	1,437	1,445
Aircraft fuel, spare parts and supplies, net	623	625
Prepaid expenses and other	635	462
Total current assets	9,078	7,257
Operating property and equipment	17,130	16,299
Other assets
Intangibles, net of accumulated amortization	872	815
Other assets	1,885	1,921
Total other assets	2,757	2,736
Total assets	28,965	26,292
Current liabilities
Current maturities of long-term debt and capital leases	802	1,230
Accounts payable	1,175	1,029
Payables to related parties, net	2,168	2,563
Air traffic liability	3,691	2,989
Frequent flyer liability	2,776	1,823
Other accrued liabilities	1,835	1,886
Total current liabilities	12,447	11,520
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	10,972	10,004
Pension and postretirement benefits	7,355	7,400
Bankruptcy settlement obligations	275	325
Other liabilities	2,868	2,615
Total noncurrent liabilities	21,470	20,344
Stockholders' equity (deficit)
Common stock	0	0
Additional paid-in capital	10,714	10,632
Accumulated other comprehensive loss	(4,676)	(4,645)
Retained earnings (deficit)	(10,990)	(11,559)
Total stockholders' equity (deficit)	(4,952)	(5,572)
Total liabilities and stockholders' equity (deficit)	28,965	26,292
US Airways Group [Member]
Current assets
Cash	5	2	1	1
Receivables from related parties, net		157
Total current assets	5	159
Other assets
Investments in subsidiaries	7,145	6,870
Total other assets	7,145	6,870
Total assets	7,150	7,029
Current liabilities
Payables to related parties, net	480	634
Other accrued liabilities	11	3
Total current liabilities	491	637
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	524	524
Total noncurrent liabilities	524	524
Stockholders' equity (deficit)
Additional paid-in capital	4,727	4,703
Accumulated other comprehensive loss	(16)	(16)
Retained earnings (deficit)	1,424	1,181
Total stockholders' equity (deficit)	6,135	5,868
Total liabilities and stockholders' equity (deficit)	7,150	7,029
US Airways [Member]
Current assets
Cash	153	199	269	303
Short-term investments	3,270	3,016
Restricted cash and short-term investments	111	124
Accounts receivable, net	383	324
Receivables from related parties, net	242	933
Aircraft fuel, spare parts and supplies, net	298	294
Prepaid expenses and other	623	912
Total current assets	5,080	5,802
Operating property and equipment	6,627	6,506
Other assets
Goodwill	4,089	4,090
Intangibles, net of accumulated amortization	1,409	1,425
Other assets	256	267
Total other assets	5,754	5,782
Total assets	17,461	18,090
Current liabilities
Current maturities of long-term debt and capital leases	482	477
Accounts payable	362	287
Payables to related parties, net		73
Air traffic liability	1,724	1,263
Frequent flyer liability		984
Other accrued liabilities	1,164	1,253
Total current liabilities	3,732	4,337
Noncurrent liabilities
Long-term debt and capital leases, net of current maturities	4,919	4,945
Pension and postretirement benefits	122	122
Other liabilities	1,599	1,861
Total noncurrent liabilities	6,640	6,928
Stockholders' equity (deficit)
Additional paid-in capital	5,566	5,542
Accumulated other comprehensive loss	(8)	(8)
Retained earnings (deficit)	1,531	1,291
Total stockholders' equity (deficit)	7,089	6,825
Total liabilities and stockholders' equity (deficit)	17,461	18,090
Non-Guarantor Subsidiaries [Member]
Current assets
Cash	5	7	5	6
Short-term investments	2	3
Accounts receivable, net	19	15
Receivables from related parties, net		526
Aircraft fuel, spare parts and supplies, net	74	85
Prepaid expenses and other	41	41
Total current assets	141	677
Operating property and equipment	285	279
Other assets
Other assets	47	38
Total other assets	47	38
Total assets	473	994
Current liabilities
Current maturities of long-term debt and capital leases		1
Accounts payable	52	61
Payables to related parties, net	3	239
Other accrued liabilities	124	138
Total current liabilities	179	439
Noncurrent liabilities
Pension and postretirement benefits	40	40
Other liabilities	44	317
Total noncurrent liabilities	84	357
Stockholders' equity (deficit)
Additional paid-in capital	199	199
Accumulated other comprehensive loss	(12)	(12)
Retained earnings (deficit)	23	11
Total stockholders' equity (deficit)	210	198
Total liabilities and stockholders' equity (deficit)	$ 473	$ 994